[BMIm]BF4-LiCl: An effective catalytic system for the synthesis of pyrano[3,2-c]chromene and pyrano[4,3-b]pyrone derivatives

Authors

  • Aidin Mohammadi-Barkchai Department of Applied Chemistry, Ardabil Branch, Islamic Azad University, Ardabil, 56157, I.R. Iran.
  • Kurosh Rad-Moghadam Department of Chemistry, Faculty of Science, University of Guilan, Rasht, 41335, I.R. Iran.
  • Seyyedeh Cobra Azimi Department of Chemistry, Faculty of Science, University of Guilan, Rasht, 41335, I.R. Iran.
Abstract:

An efficient and green method for the synthesis of pyrano[3,2-c]chromene or pyrano[4,3-b]pyrone derivatives is described by using a three-component condensation process of malononitrile, aldehyde, and 4-hydroxycoumarine or 4-hydroxypyrone in [BMIm]BF4-LiCl as an ionic liquid.

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Journal title

volume 3  issue 2

pages  91- 97

publication date 2013-06-01

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